Bosch GCM 8 SJL Original Instructions Manual page 31

OBJ_BUCH-1736-003.book Page 31 Thursday, August 14, 2014 1:13 PM
Adjusting the Depth Stop (Sawing Grooves) (see figure R)
The depth stop must be adjusted when a trench gap is to be
sawed.
– Swivel the depth stop 32 outward.
– Press locking lever 9 and tilt the tool arm to the desired
position.
– Turn adjusting screw 4, until the screw end touches depth
stop 32.
– Guide the tool arm slowly upward.
Special Workpieces
When sawing curved or round workpieces, these must be
especially secured against slipping. At the cutting line, no gap
may exist between workpiece, fence and saw table.
Provide for special fixtures, if required.
Checking and Adjusting the Basic Adjustment
 Before any work on the machine itself, pull the mains
plug.
To ensure precise cuts, the basic adjustment of the machine
must be checked and adjusted as necessary after intensive
use.
A certain level of experience and appropriate specialty tools
are required for this.
A Bosch after-sales service station will handle this mainte-
nance task quickly and reliably.
Adjusting the Laser
Note: To test the laser function, the machine must be con-
nected to power.
 While adjusting the laser (e. g. when moving the tool
arm), never actuate the On/Off switch. Accidental start-
ing of the power tool can lead to injuries.
– Bring the power tool into the working position.
– Turn the saw table 15 to the 0° detent 24. The lever 21
must be felt to engage in the detent.
– Switch the laser beam on with switch 39.
Checking: (see figure S1)
– Draw a straight cutting line on the workpiece.
– Press locking switch 9 and slowly guide the tool arm down-
ward by the handle 8.
– Align the workpiece in such a manner that the teeth of the
saw blade are in alignment with the cutting line.
– Hold the workpiece in this position and slowly guide the
tool arm upward again.
– Clamp the workpiece.
The laser beam must be in alignment with the cutting line on
the workpiece over the complete length, also when the tool
arm is lowered.
Adjusting: (see figure S2)
– Screw the adjustment screw 52 in or out using a suitable
screwdriver until the laser beam is parallel with the cutting
line on the workpiece over the complete length.
One rotation in anticlockwise direction moves the laser beam
from left to right; one rotation in clockwise direction moves
the laser beam from right to left.
Bosch Power Tools
Setting the Standard Bevel Angle 0° (Vertical)
– Bring the power tool into the working position.
– Turn the saw table 15 to the 0° detent 24. The lever 21
must be felt to engage in the detent.
Checking: (see figure T1)
– Adjust an angle gauge to 90° and position it on the saw
table 15.
The leg of the angle gauge must be flush with the saw blade 12
over the complete length.
Adjusting: (see figure T2)
– Loosen clamping lever 40.
– Push the stop 43 completely to the rear.
– Loosen the lock nut of the stop screw 53 using a commer-
cial box-end or open-end spanner (size 10 mm).
– Screw the stop screw in or out until the leg of the angle
gauge is flush with the saw blade over the complete length.
– Tighten clamping lever 40 again.
– Afterwards, retighten the lock nut of the stop screw 53
again.
In case the angle indicator 42 is not in a line with the 0° mark
of the scale 41 after the adjustment, loosen the screw 54 us-
ing a commercial cross-head screwdriver and align the angle
indicator along the 0° mark.
Setting the Standard Bevel Angle 45° (Vertical)
– Bring the power tool into the working position.
– Turn the saw table 15 to the 0° detent 24. The lever 21
must be felt to engage in the detent.
– Turn the stop 30 completely to the front.
– Loosen clamping lever 40 and tilt the tool arm by handle 8
leftward to the stop (45°).
Checking: (see figure U1)
– Adjust an angle gauge to 45° and position it on the saw ta-
ble 15.
The leg of the angle gauge must be flush with the saw blade 12
over the complete length.
Adjusting: (see figure U2)
– Loosen the lock nut of the stop screw 55 using a commer-
cial box-end or open-end spanner (size 10 mm).
– Screw the stop screw in or out until the leg of the angle
gauge is flush with the saw blade over the complete length.
– Tighten clamping lever 40 again.
– Afterwards, retighten the lock nut of the stop screw 55
again.
In case the angle indicator 42 is not in a line with the 45° mark
of the scale 41, firstly check the 0° setting for the bevel angle
and the angle indicator again. Then repeat the adjustment of
the 45° bevel angle.
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